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Galina-37 [17]
3 years ago
12

To prepare for an experiment, ten different sources of food were sterilized and kept in a sterile container. Bacteria of the sam

e species were placed on each of the ten different food sources and kept at 26°C for two days. During this time, bacteria grew in nine of the containers. Based on this observation, the scientist could conclude that ________.
Biology
1 answer:
Goryan [66]3 years ago
6 0

Answer:

The correct answer will be- Bacteria were able to utilize the food material in nine containers by producing respective enzymes.

Explanation:

The process of utilization of food material as a source of food depends on the Operon machinery of the Bacteria. The Operons gets activated in the presence of the inducer molecule which leads to the gene expression and the production of the enzymes to digest the food substance.

In the given condition, since the bacterial growth was observed in the nine containers out of ten shows that bacteria expressed the genes and produces enzymes to digest the substance in nine plates only and showed growth.

Thus, Bacteria were able to utilize the food material in nine containers by producing respective enzymes is the correct answer.

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The glucose used by the neurons for ATP production comes from:
Nastasia [14]

Answer:

Explanation:

The glucose used by the neurons for ATP production comes from:

a) Nutrients absorbed from digestion and glucose produced by the liver.

b)The breakdown of fat in adipose tissue and glycogen in muscle tissue.

c)Only Nutrients absorbed from digestion.

d)Only gluconeogenesis in the liver.

What can receptors detect?

a)Loss of homeostasis

b)Loss of homeostasis and a return to homeostasis.

c) A return to homeostasis.

d)Need for medical attention.

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b) Protection

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a) The hypothalamus

b) pituitary gland.

c) medulla oblongata

d) all of the above

What increases blood pressure?

a) Decreased heart rate.

b) Decreased blood vessel resistance

c) Increased blood volume

d) all of the above

What ends a hormonal response to increase blood pressure?

a) Low blood pressure

b) High blood pressure

c) A return to homeostasis.

d) Low blood pressure and a return to homeostasis

6 0
3 years ago
Cross a mother who carries the hemophilia gene but does not express it, With a father with hemophilia
alisha [4.7K]

Answer: The cross will produce 4 offsprings with the following genotypes:

XhXh, XhX, XhY and XY.

Explanation: Hemophilia is an X-linked disease. A woman who carries the hemophilia gene but doesn't not express it is heterozygous, therefore she has a genotype of XhX, and a man who has hemophilia has a genotype of XhY. A cross between them will produce one female and one male who are hemophilic (XhXh and XhY), one female who is a carrier (XhX) and one normal male.

See the punnett square attached for the cross

3 0
3 years ago
A habitat is best described as _____.
Ket [755]
The place where an organism lives
3 0
3 years ago
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lubasha [3.4K]

Answer:

The Golgi apparatus is especially developed in cells that have functions related to the secretion of substances, such as cells of the nervous or endocrine system.

Explanation:

The Golgi apparatus is the organelle responsible for most of the modifications that lipids and proteins undergo once their synthesis in the endoplasmic reticulum (ER) has been completed, that is, the Golgi apparatus is a cellular organ whose function is to manage the proteins synthesized by the endoplasmic reticulum in order to transform and export them to the rest of the body. It is made up of flattened cisterns (middle zone) with an entrance zone or face and an exit zone. The proteins enter the Golgi apparatus and are later transported to these cisterns where they are modified by enzymes.

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3 years ago
Groundwater _____. A)exists above the earth's surface B)is impossible to pollute C)forms when precipitation seeps into the soil
kirill [66]

Answer: C

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